Headsets/headphones & earbuds

Products and reference designs

Headsets/headphones & earbuds

Block diagram


Our integrated circuits and reference designs help you create Bluetooth® headset/headphone and earbud designs, including true wireless systems (TWS) and smart headphones/hearables. Create next-generation devices that deliver premium audio with noise cancellation, ultra-low standby power and biosensing capabilities that allow you to monitor heart rate and temperature.

Design requirements

Headsets/headphones and earbud systems often require:

  • Compact battery management with ultra-low standby for longer battery runtime.
  • Ultra-small power components with small bill of material (BOM) size, high efficiency and low standby power.
  • Biosensing to monitor heart rate and temperature during normal use or physical activity.

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Block diagram

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Technical documentation

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Type Title Date
Application note Space Optimized, “Clam Shell” Layout for Step-Down DC/DC Converters 31 Oct 2016
White paper Enabling modern retail and logistics automation 09 Jun 2021
Application note Improved Fast Charge Using the bq25120 Adjustible VBATREG, Charge Current, TS, 08 Aug 2016
Analog Design Journal Battery-charging considerations for low-power applications 02 May 2016

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